Illuminated transparency



June 9, 1931 H L 1,809,382

ILLUMINATED TRANSPARENCY Filed June 18. 1928 Patented June 9, 1931 g 1 30 332 1 UNITED STAT oFFIC RoY E. I-IALLINGS, on NEW" YORK, N. Y.

' ILLUMINATED TRANSBARENGY Application filed June 18 1928. Serial No. 286,173.

- The present invention has relation to an ably supported. These are preferably elecimproved ornamental illuminated transpartric lamps. The front of the box is open and ency particularly useful for advertising furnished with a suitable frame 12 for signs, lamp shades etc., aswell as to a process carrying the sign proper indicated in Fig. 1. 6 for making the same. This sign proper is preferably composed of '15 The principal object of this invention is to a sheet of metal 13 which is punched or cut supply a form of illuminated transparency out in any manner desired, as for instance which shall be substantially non-inflammable withthe letters Sign as shown in Fig. 1. and by means of which a uniformly diffused, The front of this sheet 13 may be painted, in and yet brilliant and sparkling, light, colored lacquered, electroplated or otherwise finished 60 or otherwise, may be transmitted through as shown at 14 and when the same is thorsuitable apertures or through a suitably oroughly dry the next step in the process of namented surface, for advertising or other manufacture is to paint or spray the inner purposes. In the following description and surface or back of this plate with transparent 15 claims, the word transparent is intended lacquer or similar quick drying adhesive 15, 65 to cover any suitable degree of capacity to and while it is still wet I preferably apply a allow the passage of light. sheet of silk or like translucent fabric16 The principal object of the present invenwhich absorbs the adhesive on the back of the tion is the production of an illuminated sign plate 13, and when dry, adheres firmly to the 2 so made as to combine the qualities of sparplate. The fabric may be dyed or otherwise kling brilliancy With such a degree Of light treated to produce a design 01200101 effect. difiusion as will make all parts of the sign When the fabric has dried sufiiciently to clearly and uniformly visible and agreeable make it adhere to the plate 13, the innerside to the eye. or back of the same is painted or sprayed Broadly stated, my invention comprises a withlacquerl? which may be clear or colored;

transparent sheet, colored or otherwise, to andthi's should be of such a consistency that which globules of transparent material, such it will partly pass through the ilk or other as glass, are made to adhere, either on one or fabric at th a rtures in the plate 13. This both sides, whereby a pleasant diffusion 0f will giveawet lacquered surface on the fabric transmitted light is accomplished, while preon th fa id 1 so serving a brilliant effect. As ad pted o i1- While the face side is still wet I next sprinluminated signs in particular, a sheet OI kle glass globulesonthe front face which sheets of this kind may be applie 0 an adhere'to the fabric in the openings. vThese opaque sheet suitably cut out or otherwise l bul may b olor d or not a d ir d. perforated and my invention will be herein Th next step referably employed is, after described in this connection, although not the lacquer has dried sufiiciently to harden, necessarlly 00 I1finj3d t0 to turn the plate over and apply clear or The 1I1Vent 10n 1S lllustlated 1n P Q Q dyed lacquer to the back of the fabric so that form appiled to transparfnt or l it covers the fabric thickly over the openings 40 Hated i m accompimylrig drawuigs in 1 he plate 13. While this coating is still wet i 1S i g eg w i 3" transparent globules preferably of glass are p 6 0mm 1 umma e slbn 6 W1 1 preferably sprinkled on this latter side also.

fiz i gg l fig ig' gi g i g g g gi The globules above referred to are indicated in Fig. 5 at 17 and 18.

f t' ftl f t l t sectlonal Vlewso apor Ion 0 16 mm P a e The article having been allowed to dry of said si 11 in successive sta es of manufactu g g thoroughly, say for about three hours, clear In the form of illuminated sign shown in lacquer i p e y pp i d to both h a the drawings a suitable box or container 10 and back of the plate, and when these layers is furnished with one or more lamps 11 suitare thoroughlydrled they hold the globules 3,89

firmly in place, so as to allow rubbing, washin or other rough usage.

I prefer the application of the globules to both sides as I find it gives it improved diffusion of the light. I have found that the application of the glass globules to both, or even to one side of the fabric renders it practically non-inflammable, even though the lacquer used may be of an inflammable nature.

In this connection it is to be understood that the term lacquer as used in my claims is intended to cover any quick drying thick substance suitable for this purpose] I have found a very suitable substance to'be the thick almost gummy material manufactured for use as an electric insulator, which I thin down with ordinary lacquer to the proper working consistency. It is quick drying and clear, will not soften in water and dries hard.

While I prefer to use silk or similar fabric in the manner above described, my invention is not limited to this material. Forinstance, I may'use a sheet of glass either clear or colcred.

Moreover, I may apply the adhesive to the face of the transparent sheet instead of to the back of the plate 13, and bring the two sheets together before the adhesive dries. For example, I paint or spray the front of the glass with a thick coating preferably of silicate of soda, which is allowed tobecome semi dry or tacky. The glass is then laid over the back of-the plate 13, so that it entirely covers the openings therein. The plate is then turned over and the globules of glass, preferably of the same color as the sheet glass, are sprinkled on the openings in the plate 13, where they adhere to the silicateof soda on the surface of the glass plate.

After the silicate of soda has'dried firmly, so as to attach'the glass plate tothe back of the plate 13 ,the rear of the plate is sprayed with lacquer both. on the glass and on the plate 13 around it. While this lacquer is still wet, I prefer to apply apiece of fabric, preferably silk, to the back of the glass and a portionjof the metal around'it. This renders the glass practically unbreakable and serves to aid in holding it firmly to the plate 13.

' While I have used I the term globules with respect to the'inat'erial which is sprinkled upon the transparent sheet, it is to be understood that any small particles what-' ever their shape may be will be. within the scopeof my invention.

My invention may be carried out in a variety of ways which will occur to those skilled in the art and I do not limit myself to the details herein shown and described.

What I claim is I r 1. An illuminated sign, comprising a front plate having suitable apertures, a. transparent sheet secured by adhesive material to the back of the said plate, said transparent sheet being fabric, and transparent globules secured by adhesive to one side of said fabric coincident with said apertures.

2. In the process of manufacturing an illuminated sign, securing a transparent sheet by adhesive to one side of a perforated plate and sprinkling transparent globules Within the apertures in said plate upon the transparent sheet while the same is covered with wet adhesive.

3. In the process of manufacturing an illuminated sign, securing a transparent sheet to one side of a perforated plate, applying adhesive to both sides of said sheet, and sprinkling transparent globules on both sides of said sheet opposite the apertures in said plate while the adhesive is wet.

4;. In the process of manufacturing an illuminated sign, applying a strongadhesive to a sheet of transparent material, pressing the same against one side of a perforated plate, and sprinkling the adhesive within the apertures in the sheet with transparent globules before the same has time to dry.

In testimony whereof I have hereto aflixed my signature on this 11th day of June 1928.

. ROY E. HALLINGS. 

